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further improve event listener performance

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vcoppe
2026-02-01 15:57:18 +01:00
parent 0ab3b77db8
commit 9895c3c304
5 changed files with 114 additions and 59 deletions
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28
website/src/lib/logic/statistics-tree.ts
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@@ -1,18 +1,24 @@
import { ListItem, ListLevel } from '$lib/components/file-list/file-list';
import { GPXFile, GPXStatistics, GPXStatisticsGroup, type Track } from 'gpx';
import maplibregl from 'maplibre-gl';
export class GPXStatisticsTree {
level: ListLevel;
statistics: {
[key: string]: GPXStatisticsTree | GPXStatistics;
} = {};
wptBounds: maplibregl.LngLatBounds;
constructor(element: GPXFile | Track) {
this.wptBounds = new maplibregl.LngLatBounds();
if (element instanceof GPXFile) {
this.level = ListLevel.FILE;
element.children.forEach((child, index) => {
this.statistics[index] = new GPXStatisticsTree(child);
});
element.wpt.forEach((wpt) => {
this.wptBounds.extend(wpt.getCoordinates());
});
} else {
this.level = ListLevel.TRACK;
element.children.forEach((child, index) => {
@@ -42,5 +48,27 @@ export class GPXStatisticsTree {
}
return statistics;
}
inBBox(coordinates: { lat: number; lng: number }): boolean {
for (let key in this.statistics) {
const stats = this.statistics[key];
if (stats instanceof GPXStatistics) {
const bbox = new maplibregl.LngLatBounds(
stats.global.bounds.southWest,
stats.global.bounds.northEast
);
if (!bbox.isEmpty() && bbox.contains(coordinates)) {
return true;
}
} else if (stats.inBBox(coordinates)) {
return true;
}
}
return false;
}
inWaypointBBox(coordinates: { lat: number; lng: number }): boolean {
return !this.wptBounds.isEmpty() && this.wptBounds.contains(coordinates);
}
}
export type GPXFileWithStatistics = { file: GPXFile; statistics: GPXStatisticsTree };